70% equity and 30% debt. Should 1031 into similar?

[Seo Hui Han]

i have a commercial property that I'm considering unloading.  Equity position currently 70%.   Would like to 1031 into a multifamily in Orange County.  I've done the math and if I go into a property with a 4% cap keeping the same equity/debt ratio, I think I can cashflow pretty well.

My question is:  is this advisable?  I hear about everyone going 20 or 30 percent down and not being able to cashflow.  I'd like to both appreciate and cashflow, and by going with a huge down payment, I think I can do it, even in Southern California.

BTW, I am a newbie, kind of fell *** backwards into my current situation, and would like to grow my inadvertant good fortune.